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Rotational Motion question

2012 · Shift 1 · Q46
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  5. /2012 · Shift 1 · Q46

Rotational Motion question

2012 · Shift 1 · Q46

JEE AdvancedPhysicsRotational MotionMCQ+3 / −1
A small mass m is attached to a massless string whose other end is fixed at P as shown in the figure. The mass is undergoing circular motion in the xy-plane with centre at O and constant angular speed ω\omegaω. If the angular momentum of the system, calculated about O and P are denoted by L→O{\overrightarrow L _O}LO​ and L→P{\overrightarrow L _P}LP​, respectively, then IIT-JEE 2012 Paper 1 Offline Physics - Rotational Motion Question 28 English
  1. A
    L→O{\overrightarrow L _O}LO​ and L→P{\overrightarrow L _P}LP​ do not vary with time.
  2. B
    L→O{\overrightarrow L _O}LO​ varies with time while L→P{\overrightarrow L _P}LP​ remains constant.
  3. C
    L→O{\overrightarrow L _O}LO​ remains constant while L→P{\overrightarrow L _P}LP​ varies with time.
  4. D
    L→O{\overrightarrow L _O}LO​ and L→P{\overrightarrow L _P}LP​ both vary with time.
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